Breast pumps????

Ma

What should I get? I know I want a dual electric, but beyond that I'm pretty clueless.

Also, my insurance will pay for a pump but not until after the baby is born...How long does it take to go through? Ideally I want to start pumping ASAP to increase my production and build a stockpile if I can before I go back to work.

Help, I'm overwhelmed!!